Transmission mechanism



E. T. COUSE.

TRANSMISSION MECHANISNI APPLICATION FILED ocT.`Io, I919.

1,356,601'. Patemed ont. 26,1920.

3 /fi [7 A54-l Mizee/ B M ELvIN fr. ooUSE, or SAN JOSE, onLrroRNIA.

TRANSMISSION MEGHANISM.

vSpecification of Letters Patent. Y

Application.inea-,october 10, 1919. Vserial No. 329,665.

T 0 all whom t may concern:

Be it known that l, ELVIN of? San Jose, in the county and State of California, have invented cer-..2'

tain new Transmission Mechanisms, of which lowing is a speciication. l

My invention relates particularly to the diiierential gearing of a transmission mechand' useful Improvements in amsm.

It is the object of my invention to provide a Simple and efficient mechanism of the character indicated whereby either side of a diterentialgearing may be controlled at will by the operator of the machine in which it is used.

In the drawing:

Figure 1 is a sectional view through the device on line 1--1 of Fig` 2, with the lower pinion omitted. Y Y

Fig. 2 is a sectional view on line 2 2 of Fig. 1.

Referring more particularly to the drawing, 1 indicates a bearing shaft such as shown 'in my 'Patent No. 1,317,075, of Sept. 23, 1919. Shaft 1 has a web 2'mounted thereon and fixed against lateral displacement by means ot collars 4&4?, said web 2 having pinions 5-5-5 revolubly mounted' therein on shaits 6-6-6. Meshing with pinions 5 are bevel gears 7---7a which are xedly secured to hollow driving shafts 8--8l revolubly mounted on shaft 1.

At 9-9-9 areV shown integrally with pinions 5-5-5 and in the present case of greater diameter than said pinions and meshing with bevel gears 10-10a, the latter being secured to drums 1.1--11a by bolts as 12.

Drums 11- 11a are. mounted to revolve on shafts S--SfL through the medium of bearings lit-13a, the bearings for shafts S-Sa being shown at lll-14?. Each drum is controlled by means of a suitable brake band as 15-15a, which may be tightened or loosened upon its respective drum in any suitable manner as' by engaging cams as indicated at'16. Power is applied to driving shafts 8--8a through gears 7-72, pin- T. j citizen of the United States, and resident,

of Santa Clara;

the olj operation of the It is clear from the above description that his .nature the gears 9 and other driving shaft. n y v It is understood therefore, that changes bevel gears formed.

the present case, worm drive 17 Y Under' ordinary conditions all of the parts indicated by the numerals 2, 5, 6, 7, 7a, 8, 8a, 9,210,110?, 111,111a revolve as a unitary structure when put into operation by gear conj neeti'on f 17.

v l however, the V`vbrake is applied to one drum as 11a lthey gears` and revolve upon their shafts 6in the direction indicated by the dium oi` gear 10a arrow Ythrough the meiXed to the braked drum.

ratenteaoct. 26,1920.

`pinions 9 vand 5 respectively are caused to The revolving of gears 9 and pinions 5 f necessarily cause the shafts 8 8a to revolve through the medium of bevel gears 7-7a, these shafts obviously being caused to r0- tate at unequalv rates of speed in thel same direction, thereby slowing down shaft 8a -and .acceleratingshaft 8, the desired relative speedsoiiI rotation being secured by the proper brake.

in a device oi` pinions may be proportioned to secure any desired eii'ect upon the speed lof the driven shafts 8 and 8a; The invention hereinbefore describedA does not vreside in the specic construction above set forth but in causing pinions 5 to rotate in either direction as desired thereby slowing vdown' the speed or', rotation of one driving shaft and accelerating the speed oft rotation ions and in axial allnement therewith, and

of the permanent gear connections between each nent engagement With said opposed gears,

of said braking means and said larger gears. braking means revolubly mounted, on each 10 2. A transmission mechanism including of said opposed shafts, a gear mounted upon a bearing shaft, a pair of opposed driving each of saidvbraking means, and a gear Y 5 shafts Vmounted thereon and carrying opmounted integrally with each vof'sad pinposed gears, a member Vmounted onsaidV ions and in permanent engagement With bearing shaft between said opposed gears, said last mentioned gears. Y x pinions mounted in said memberinY perma- ELVIN T. COUSE, 

